Starting in the bustling city of London, the 1st Half Challenge offers participants an immersive journey along the Thames, passing historic sites and modern marvels before transitioning to the more peaceful, natural landscapes that line the outskirts of the city. This 50km challenge is perfect for runners who wish to experience the diverse environments of the Thames Path, from urban vibrancy to countryside calm, within a manageable ultra-distance. The relatively flat terrain ensures that runners can focus on enjoying the scenery and the challenge, making it an excellent choice for those aiming to complete their first ultra or improve their endurance over longer distances. Completing the 1st Half Challenge is an achievement that brings with it not only the satisfaction of having conquered a significant distance but also the joy of having explored the iconic and scenic Thames Path in all its diversity.